The BitMapPlus plugin you use to tile bitmaps - usually for some floor or pavement. Here it is used to tile a bitmap for the terrain of a hill. And to tile another bitmap for the stem and branches of a tree.
The TreeZ plugin you use to create trees - the stem and the branches. Then you can make a hair material to get some leaves in the tree.
You will learn the Basics so you can start experimenting yourself with trees and terrain.
The plugins BitMapPlus and TreeZ you can find here:
BitMapPlus.atx
you will find here:
http://www.hash.com/forums/index.php?showt...indpost&p=92973
TreeZ.hxt
you will find here for A:M 11.0
http://www.hash.com/forums/index.php?showt...indpost&p=25785
and here for A:M 11.5:
http://www.hash.com/forums/index.php?showt...indpost&p=25893